Final Answer:
Guyana has the Essequibo River, its longest and widest, as well as the Berbice River and the Corentyne River.
Step-by-step explanation:
Guyana, located on the northern coast of South America, is endowed with several major rivers. The Essequibo River is the longest and widest river in Guyana, flowing across the country and playing a significant role in its geography and ecosystems. The Berbice River and Corentyne River are also prominent waterways within Guyana. The Berbice River traverses the eastern part of the country, while the Corentyne River forms part of the border between Guyana and Suriname. These rivers are vital for transportation, agriculture, and biodiversity in Guyana, contributing to the nation's rich natural heritage.
In summary, Guyana boasts the Essequibo River as its longest and widest, along with the Berbice River and Corentyne River.